What are your thoughts of using a 4 way (3/4") cross connector at the sprinkler head (instead of the 3-way tee connector) and installing a filtered drain at the bottom and using the (3/4" Soc x 1/2" female NPT) Bushing on the top to install the sprinkler head. That would be less work than having to install the filtered drains all along the low points of the line… Would installing the filtered drains directly below the sprinkler heads cause any issues? Anybody know the answer to this?